Aluminium Window Frame with Integrated Mosquito Net Roller
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Solution Overview
Problem
Existing window systems with anti-mosquito grids do not effectively integrate the mosquito net into the fixed frame, leading to limitations in size, visibility of fasteners, and manual operation, while also failing to prevent pollen entry.
Innovation Solution
An aluminium framework with an integrated anti-pollen and/or mosquito net that uses torsion springs for automatic rolling, multipoint locking systems, and stainless steel bearings for smooth operation, allowing for large dimensions and concealed fasteners, with manual or automatic actuation options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the mosquito net is integrated into the movable panel as in prior art, then the net moves with the panel, but the roller must be attached to the handle which increases device complexity and limits manufacturing dimensions
Solution Approach 1:
The patent inverts the conventional approach by integrating the mosquito net roller into the fixed frame instead of the movable panel. This reversal allows the net to be stationary while the panel moves, solving the complexity issue of moving rollers and enabling larger manufacturing dimensions without compromising net functionality.
Solution Approach 2:
The patent segments the mosquito net system from the movable panel, placing the roller mechanism in the fixed frame. This segmentation allows independent optimization of each component - the panel can be made larger and simpler while the roller is positioned where it provides mechanical advantage and ease of operation.
2Ease of manufacture
If visible fasteners are used in the fixed frame, then assembly is simplified, but aesthetic appeal is reduced
Solution Approach 1:
The patent embeds the fastening mechanisms within the profile structure of the fixed frame. The bolts, screws, or rivets are positioned in recesses or channels of the profile, making them invisible from the exterior while maintaining secure assembly. This nesting approach preserves both manufacturing simplicity and aesthetic appeal.
3Ease of operation
If the locking system is directly in the handle as in prior art, then operation is simplified, but the system cannot support multipoint locking and automatic actuation
Solution Approach 1:
The patent introduces an intermediary locking system in the fixed frame that mediates between the handle operation and the actual locking action. This intermediary system enables both simple manual operation through the handle and complex automatic actuation through motors, while supporting multipoint locking. The intermediary mechanism translates various input methods into coordinated locking actions at multiple points.
Solution Approach 2:
The locking system in the fixed frame is designed with multi-functionality to handle both manual and automatic operation modes, and to support multiple locking points simultaneously. This universal design allows the same system to accommodate simple handle-based operation as well as complex motorized actuation with remote control capabilities.
4Device complexity
If manual operation of the mosquito net is used, then the system is simpler, but automation and remote actuation are not possible
Solution Approach 1:
The mosquito net roller is equipped with torsion springs that provide automatic winding capability. When the net is extended or retracted, the springs automatically wind the net onto the roller, eliminating the need for manual winding operations. This self-service mechanism reduces device complexity while enabling automatic operation.
Solution Approach 2:
The locking system acts as an intermediary that connects the manual or automatic actuation mechanism to the mosquito net roller. This intermediary can be manually operated or automated with motors and remote control, providing flexibility in operation mode while maintaining a relatively simple overall system architecture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides effective prevention of insect and pollen entry while allowing air circulation, with automated operation and concealed fasteners, enabling larger panel sizes and reduced effort in movement, while maintaining aesthetic appeal by hiding fasteners.
Implementation Method 1
automatically wound or unwound by means of torsion springs inserted in the winder of the mosquito net (9)
Implementation Method 2
an aluminium profile was specially designed for this system where stainless steel bearings are installed
Implementation Method 3
an electronic mechanism together with solenoids (17a) (17b) and the automatic sliding thereof
Data Source
AI summary
The present invention consists of aluminium framework for the manufacture of doors or windows, which is applied in a door or window opening of a building. It comprises at least one fixed frame (1) and fixed or movable panels (4) which have central (6) and reinforcing (5) props, handles (3) (7), anti-pollen/mosquito net (9) winder integrated into a profile (10). It has a locking system (2) of the panels (4), which is integrated in the aluminium profiles of the fixed frame (1); a locking system (8) of the anti-pollen/mosquito net (9) allowing the profile (11) of the net (9) to be attached to the handle (7). The movements of the net (9) and the panels (4) can be performed either manually or automatically, in both cases this movement being facilitated by a slide rule (13) with integrated bearings.